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xfs: remove the mappedbno argument to xfs_da_read_buf 

Move the code for reading an already mapped block into
xfs_da3_node_read_mapped, which is the only caller ever passing a block
number in the mappedbno argument and replace the mappedbno argument with
the simple xfs_dabuf_get flags.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2019-11-20 09:46:04 -08:00 committed by Darrick J. Wong
parent 02c57f0a8b
commit cd2c9f1b54
11 changed files with 47 additions and 50 deletions
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2
fs/xfs/libxfs/xfs_attr_leaf.c
View File

@ -434,7 +434,7 @@ xfs_attr3_leaf_read(
{
int err;
err = xfs_da_read_buf(tp, dp, bno, -1, bpp, XFS_ATTR_FORK,
err = xfs_da_read_buf(tp, dp, bno, 0, bpp, XFS_ATTR_FORK,
&xfs_attr3_leaf_buf_ops);
if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_ATTR_LEAF_BUF);

34
fs/xfs/libxfs/xfs_da_btree.c
View File

@ -369,7 +369,7 @@ xfs_da3_node_read(
{
int error;
error = xfs_da_read_buf(tp, dp, bno, -1, bpp, whichfork,
error = xfs_da_read_buf(tp, dp, bno, 0, bpp, whichfork,
&xfs_da3_node_buf_ops);
if (error || !*bpp || !tp)
return error;
@ -384,12 +384,22 @@ xfs_da3_node_read_mapped(
struct xfs_buf **bpp,
int whichfork)
{
struct xfs_mount *mp = dp->i_mount;
int error;
error = xfs_da_read_buf(tp, dp, 0, mappedbno, bpp, whichfork,
&xfs_da3_node_buf_ops);
if (error || !*bpp || !tp)
error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, mappedbno,
XFS_FSB_TO_BB(mp, xfs_dabuf_nfsb(mp, whichfork)), 0,
bpp, &xfs_da3_node_buf_ops);
if (error || !*bpp)
return error;
if (whichfork == XFS_ATTR_FORK)
xfs_buf_set_ref(*bpp, XFS_ATTR_BTREE_REF);
else
xfs_buf_set_ref(*bpp, XFS_DIR_BTREE_REF);
if (!tp)
return 0;
return xfs_da3_node_set_type(tp, *bpp);
}
@ -2618,7 +2628,7 @@ xfs_da_read_buf(
struct xfs_trans *tp,
struct xfs_inode *dp,
xfs_dablk_t bno,
xfs_daddr_t mappedbno,
unsigned int flags,
struct xfs_buf **bpp,
int whichfork,
const struct xfs_buf_ops *ops)
@ -2630,24 +2640,12 @@ xfs_da_read_buf(
int error;
*bpp = NULL;
if (mappedbno >= 0) {
error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
mappedbno, XFS_FSB_TO_BB(mp,
xfs_dabuf_nfsb(mp, whichfork)),
0, &bp, ops);
goto done;
}
error = xfs_dabuf_map(dp, bno,
mappedbno == -1 ? XFS_DABUF_MAP_HOLE_OK : 0,
whichfork, &mapp, &nmap);
error = xfs_dabuf_map(dp, bno, flags, whichfork, &mapp, &nmap);
if (error || !nmap)
goto out_free;
error = xfs_trans_read_buf_map(mp, tp, mp->m_ddev_targp, mapp, nmap, 0,
&bp, ops);
done:
if (error)
goto out_free;

5
fs/xfs/libxfs/xfs_da_btree.h
View File

@ -206,9 +206,8 @@ int xfs_da_get_buf(struct xfs_trans *trans, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mappedbno,
struct xfs_buf **bp, int whichfork);
int xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mappedbno,
struct xfs_buf **bpp, int whichfork,
const struct xfs_buf_ops *ops);
xfs_dablk_t bno, unsigned int flags, struct xfs_buf **bpp,
int whichfork, const struct xfs_buf_ops *ops);
int xfs_da_reada_buf(struct xfs_inode *dp, xfs_dablk_t bno,
unsigned int flags, int whichfork,
const struct xfs_buf_ops *ops);

4
fs/xfs/libxfs/xfs_dir2_block.c
View File

@ -123,7 +123,7 @@ xfs_dir3_block_read(
struct xfs_mount *mp = dp->i_mount;
int err;
err = xfs_da_read_buf(tp, dp, mp->m_dir_geo->datablk, -1, bpp,
err = xfs_da_read_buf(tp, dp, mp->m_dir_geo->datablk, 0, bpp,
XFS_DATA_FORK, &xfs_dir3_block_buf_ops);
if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_BLOCK_BUF);
@ -950,7 +950,7 @@ xfs_dir2_leaf_to_block(
* Read the data block if we don't already have it, give up if it fails.
*/
if (!dbp) {
error = xfs_dir3_data_read(tp, dp, args->geo->datablk, -1, &dbp);
error = xfs_dir3_data_read(tp, dp, args->geo->datablk, 0, &dbp);
if (error)
return error;
}

6
fs/xfs/libxfs/xfs_dir2_data.c
View File

@ -400,13 +400,13 @@ xfs_dir3_data_read(
struct xfs_trans *tp,
struct xfs_inode *dp,
xfs_dablk_t bno,
xfs_daddr_t mapped_bno,
unsigned int flags,
struct xfs_buf **bpp)
{
int err;
err = xfs_da_read_buf(tp, dp, bno, mapped_bno, bpp,
XFS_DATA_FORK, &xfs_dir3_data_buf_ops);
err = xfs_da_read_buf(tp, dp, bno, flags, bpp, XFS_DATA_FORK,
&xfs_dir3_data_buf_ops);
if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_DATA_BUF);
return err;

13
fs/xfs/libxfs/xfs_dir2_leaf.c
View File

@ -266,7 +266,7 @@ xfs_dir3_leaf_read(
{
int err;
err = xfs_da_read_buf(tp, dp, fbno, -1, bpp, XFS_DATA_FORK,
err = xfs_da_read_buf(tp, dp, fbno, 0, bpp, XFS_DATA_FORK,
&xfs_dir3_leaf1_buf_ops);
if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAF1_BUF);
@ -282,7 +282,7 @@ xfs_dir3_leafn_read(
{
int err;
err = xfs_da_read_buf(tp, dp, fbno, -1, bpp, XFS_DATA_FORK,
err = xfs_da_read_buf(tp, dp, fbno, 0, bpp, XFS_DATA_FORK,
&xfs_dir3_leafn_buf_ops);
if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAFN_BUF);
@ -826,7 +826,7 @@ xfs_dir2_leaf_addname(
*/
error = xfs_dir3_data_read(tp, dp,
xfs_dir2_db_to_da(args->geo, use_block),
-1, &dbp);
0, &dbp);
if (error) {
xfs_trans_brelse(tp, lbp);
return error;
@ -1268,7 +1268,7 @@ xfs_dir2_leaf_lookup_int(
xfs_trans_brelse(tp, dbp);
error = xfs_dir3_data_read(tp, dp,
xfs_dir2_db_to_da(args->geo, newdb),
-1, &dbp);
0, &dbp);
if (error) {
xfs_trans_brelse(tp, lbp);
return error;
@ -1310,7 +1310,7 @@ xfs_dir2_leaf_lookup_int(
xfs_trans_brelse(tp, dbp);
error = xfs_dir3_data_read(tp, dp,
xfs_dir2_db_to_da(args->geo, cidb),
-1, &dbp);
0, &dbp);
if (error) {
xfs_trans_brelse(tp, lbp);
return error;
@ -1602,8 +1602,7 @@ xfs_dir2_leaf_trim_data(
/*
* Read the offending data block. We need its buffer.
*/
error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(geo, db), -1,
&dbp);
error = xfs_dir3_data_read(tp, dp, xfs_dir2_db_to_da(geo, db), 0, &dbp);
if (error)
return error;

14
fs/xfs/libxfs/xfs_dir2_node.c
View File

@ -212,14 +212,14 @@ __xfs_dir3_free_read(
struct xfs_trans *tp,
struct xfs_inode *dp,
xfs_dablk_t fbno,
xfs_daddr_t mappedbno,
unsigned int flags,
struct xfs_buf **bpp)
{
xfs_failaddr_t fa;
int err;
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_free_buf_ops);
err = xfs_da_read_buf(tp, dp, fbno, flags, bpp, XFS_DATA_FORK,
&xfs_dir3_free_buf_ops);
if (err || !*bpp)
return err;
@ -297,7 +297,7 @@ xfs_dir2_free_read(
xfs_dablk_t fbno,
struct xfs_buf **bpp)
{
return __xfs_dir3_free_read(tp, dp, fbno, -1, bpp);
return __xfs_dir3_free_read(tp, dp, fbno, 0, bpp);
}
static int
@ -307,7 +307,7 @@ xfs_dir2_free_try_read(
xfs_dablk_t fbno,
struct xfs_buf **bpp)
{
return __xfs_dir3_free_read(tp, dp, fbno, -2, bpp);
return __xfs_dir3_free_read(tp, dp, fbno, XFS_DABUF_MAP_HOLE_OK, bpp);
}
static int
@ -857,7 +857,7 @@ xfs_dir2_leafn_lookup_for_entry(
error = xfs_dir3_data_read(tp, dp,
xfs_dir2_db_to_da(args->geo,
newdb),
-1, &curbp);
0, &curbp);
if (error)
return error;
}
@ -1940,7 +1940,7 @@ xfs_dir2_node_addname_int(
/* Read the data block in. */
error = xfs_dir3_data_read(tp, dp,
xfs_dir2_db_to_da(args->geo, dbno),
-1, &dbp);
0, &dbp);
}
if (error)
return error;

4
fs/xfs/libxfs/xfs_dir2_priv.h
View File

@ -77,8 +77,8 @@ extern void xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
extern xfs_failaddr_t __xfs_dir3_data_check(struct xfs_inode *dp,
struct xfs_buf *bp);
extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t bno, unsigned int flags, struct xfs_buf **bpp);
int xfs_dir3_data_readahead(struct xfs_inode *dp, xfs_dablk_t bno,
unsigned int flags);

4
fs/xfs/scrub/dabtree.c
View File

@ -331,8 +331,8 @@ xchk_da_btree_block(
goto out_nobuf;
/* Read the buffer. */
error = xfs_da_read_buf(dargs->trans, dargs->dp, blk->blkno, -2,
&blk->bp, dargs->whichfork,
error = xfs_da_read_buf(dargs->trans, dargs->dp, blk->blkno,
XFS_DABUF_MAP_HOLE_OK, &blk->bp, dargs->whichfork,
&xchk_da_btree_buf_ops);
if (!xchk_da_process_error(ds, level, &error))
goto out_nobuf;

9
fs/xfs/scrub/dir.c
View File

@ -229,7 +229,8 @@ xchk_dir_rec(
xchk_da_set_corrupt(ds, level);
goto out;
}
error = xfs_dir3_data_read(ds->dargs.trans, dp, rec_bno, -2, &bp);
error = xfs_dir3_data_read(ds->dargs.trans, dp, rec_bno,
XFS_DABUF_MAP_HOLE_OK, &bp);
if (!xchk_fblock_process_error(ds->sc, XFS_DATA_FORK, rec_bno,
&error))
goto out;
@ -346,7 +347,7 @@ xchk_directory_data_bestfree(
error = xfs_dir3_block_read(sc->tp, sc->ip, &bp);
} else {
/* dir data format */
error = xfs_dir3_data_read(sc->tp, sc->ip, lblk, -1, &bp);
error = xfs_dir3_data_read(sc->tp, sc->ip, lblk, 0, &bp);
}
if (!xchk_fblock_process_error(sc, XFS_DATA_FORK, lblk, &error))
goto out;
@ -557,7 +558,7 @@ xchk_directory_leaf1_bestfree(
if (best == NULLDATAOFF)
continue;
error = xfs_dir3_data_read(sc->tp, sc->ip,
i * args->geo->fsbcount, -1, &dbp);
i * args->geo->fsbcount, 0, &dbp);
if (!xchk_fblock_process_error(sc, XFS_DATA_FORK, lblk,
&error))
break;
@ -608,7 +609,7 @@ xchk_directory_free_bestfree(
}
error = xfs_dir3_data_read(sc->tp, sc->ip,
(freehdr.firstdb + i) * args->geo->fsbcount,
-1, &dbp);
0, &dbp);
if (!xchk_fblock_process_error(sc, XFS_DATA_FORK, lblk,
&error))
break;

2
fs/xfs/xfs_dir2_readdir.c
View File

@ -279,7 +279,7 @@ xfs_dir2_leaf_readbuf(
new_off = xfs_dir2_da_to_byte(geo, map.br_startoff);
if (new_off > *cur_off)
*cur_off = new_off;
error = xfs_dir3_data_read(args->trans, dp, map.br_startoff, -1, &bp);
error = xfs_dir3_data_read(args->trans, dp, map.br_startoff, 0, &bp);
if (error)
goto out;